Frictional Behaviour of Composite Anodized Layers on Aluminium Alloys
| Autor: | Łukasz Kołodziejczyk, Radomir Atraszkiewicz, Marcin Makówka, Bartłomiej Januszewicz, Jan Sucharkiewicz |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Composite number friction Nanoparticle chemistry.chemical_element lcsh:Technology Article Alloy surface Aluminium TheoryofComputation_ANALYSISOFALGORITHMSANDPROBLEMCOMPLEXITY Micro arc oxidation General Materials Science Composite material lcsh:Microscopy lcsh:QC120-168.85 lcsh:QH201-278.5 Anodizing lcsh:T tribological properties Tribology chemistry lcsh:TA1-2040 lcsh:Descriptive and experimental mechanics lcsh:Electrical engineering. Electronics. Nuclear engineering lcsh:Engineering (General). Civil engineering (General) Layer (electronics) anodizing lcsh:TK1-9971 |
| Zdroj: | Materials, Vol 13, Iss 3747, p 3747 (2020) Materials Volume 13 Issue 17 |
| ISSN: | 1996-1944 |
| Popis: | Three variants of the micro arc oxidation (MAO) technique have been used to treat a 2017A alloy surface. The first variant was a pure anodized layer, the second an anodized layer with SiC embedded nanoparticles and the third an anodized layer with Si3N4 nanoparticles. Tribological tests were performed for all variants, on three samples for every case. Friction coefficients and wear rates were calculated on the basis of experiments. The pure anodized layer manifested friction coefficient values within the range of 0.48 ÷ 0.52 and a wear rate in the range ~10&minus 15 m3N&minus 1m&minus 1. SiC nanoparticles improved the tribological properties of the layer, as indicated by a reduction of the friction coefficient values to the range of 0.20 ÷ 0.26 with preserved very high resistance against wear (wear rate ~10&minus 1). Si3N4 particles embedded in anodized layer deteriorated the tribological properties, with a reduction in the resistance against fatigue and wear, intensification of friction forces and a change in the nature of friction contact behavior to more abrasive-like nature (friction coefficients ranging from 0.4 to 0.6 and wear rates ~10&minus 14 m3N&minus 1). |
| Databáze: | OpenAIRE |
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